<template>
  <div class="app-container">
    <!-- 搜索栏 -->
    <el-form
      :model="queryParams"
      ref="queryForm"
      size="small"
      :inline="true"
      v-show="showSearch"
      label-width="68px"
    >
      <el-form-item label="上架状态" prop="showOrNot">
        <el-select clearable v-model="queryParams.showOrNot">
          <el-option
            v-for="(item, index) of List"
            :key="index"
            :label="item.value"
            :value="item.key"
            >{{ item.value }}</el-option
          >
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button
          type="primary"
          icon="el-icon-search"
          size="mini"
          @click="handleQuery"
          v-hasPermi="['business:index:query']"
          >搜索</el-button
        >
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery"
          >重置</el-button
        >
      </el-form-item>
    </el-form>
    <!-- 操作栏 -->
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['business:index:add']"
          >新增</el-button
        >
      </el-col>
      <!-- <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:banner:edit']"
        >修改</el-button>
      </el-col> -->
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-close"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['business:index:del']"
          >批量删除</el-button
        >
      </el-col>
      <!-- <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['system:banner:export']"
        >导出</el-button>
      </el-col> -->
      <right-toolbar
        :showSearch.sync="showSearch"
        @queryTable="getList"
      ></right-toolbar>
    </el-row>

    <el-table
      v-loading="loading"
      :data="bannerList"
      max-height="650px"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="编号" width="55" align="center" prop="id" />
      <el-table-column label="轮播图图片" align="center" prop="img">
        <template slot-scope="scope">
          <image-preview :src="scope.row.img" :width="100" :height="100" />
        </template>
      </el-table-column>
      <el-table-column label="跳转链接" align="center" prop="urls" />
      <el-table-column label="排序" align="center" prop="orderNum" />
      <el-table-column label="状态" align="center" prop="showOrNot">
        <template slot-scope="scope">
          <span
            :style="{ color: scope.row.showOrNot ? '#808080' : '#FF5733' }"
            >{{ scope.row.showOrNot == "1" ? "已上架" : "未上架" }}</span
          >
        </template>
      </el-table-column>
      <el-table-column label="创建人" align="center" prop="createBy" />
      <el-table-column label="创建时间" align="center" prop="createTime" />
      <el-table-column label="修改人" align="center" prop="updateBy" />
      <el-table-column label="修改时间" align="center" prop="updateTime" />
      <el-table-column
        label="操作"
        fixed="right"
        align="center"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['business:index:edit']"
            >修改</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['business:index:del']"
            >删除</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-upload2"
            @click="shelfChange(scope.row, 1)"
            v-hasPermi="['business:index:upshelf']"
            :disabled="scope.row.showOrNot == 1"
            >上架</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-download"
            @click="shelfChange(scope.row, 2)"
            v-hasPermi="['business:index:downshelf']"
            :disabled="scope.row.showOrNot == 2"
            >下架</el-button
          >
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页 -->
    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改banner图片对话框 -->
    <el-dialog
      :title="title"
      :visible.sync="open"
      width="600px"
      append-to-body
      :center="true"
      :close-on-click-modal="false"
    >
      <el-form ref="form" :model="form" :rules="rules" label-width="120px">
        <el-form-item label="轮播图图片" prop="img">
          <image-upload v-model="form.img" />
        </el-form-item>
        <el-row>
          <el-col :span="12">
            <el-form-item label="跳转链接" prop="urls">
              <el-input
                v-model="form.urls"
                placeholder="请输入跳转链接"
                style="width: 210px"
              />
            </el-form-item>
          </el-col>
        </el-row>

        <el-row>
          <el-col :span="12">
            <el-form-item label="排序" prop="orderNum">
              <el-input
                v-model="form.orderNum"
                placeholder="请输入排序"
                style="width: 210px"
              />
            </el-form-item>
          </el-col>
        </el-row>

        <el-form-item label="是否展示" prop="showOrNot">
          <el-select clearable v-model="form.showOrNot">
            <el-option
              v-for="(item, index) of List"
              :key="index"
              :label="item.value"
              :value="item.key"
              >{{ item.value }}</el-option
            >
          </el-select>
        </el-form-item>
      </el-form>
      <!-- 底部按钮 -->
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {
  listBanner,
  getBanner,
  delBanner,
  addBanner,
  updateBanner,
  setUpShelf,
  setDownShelf,
} from "@/api/system/banner";

export default {
  name: "Banner",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // banner图片表格数据
      bannerList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        img: null,
        showOrNot: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        img: [{ required: true, message: "请选择图片", trigger: "blur" }],
        showOrNot: [
          { required: true, message: "请选择是否展示", trigger: "blur" },
        ],
      },
      List: [
        {
          key: 1,
          value: "已上架",
        },
        {
          key: 2,
          value: "未上架",
        },
      ],
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询banner图片列表 */
    getList() {
      this.loading = true;
      listBanner(this.queryParams).then((response) => {
        this.bannerList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        img: null,
        showOrNot: null,
        createTime: null,
        updateTime: null,
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map((item) => item.id);
      this.single = selection.length !== 1;
      this.multiple = !selection.length;
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加轮播图图片";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids;
      getBanner(id).then((response) => {
        this.form = response.data;
        this.open = true;
        this.title = "修改轮播图图片";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate((valid) => {
        if (valid) {
          if (this.form.id != null) {
            updateBanner(this.form).then((response) => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addBanner(this.form).then((response) => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal
        .confirm('是否确认删除banner图片编号为"' + ids + '"的数据项？')
        .then(function () {
          return delBanner(ids);
        })
        .then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        })
        .catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download(
        "system/banner/export",
        {
          ...this.queryParams,
        },
        `banner_${new Date().getTime()}.xlsx`
      );
    },
    // 上下架
    shelfChange(row, type) {
      if (type == 1) {
        setUpShelf(row.id).then((res) => {
          if (res.code == 200) {
            this.$message.success("上架成功");
            this.getList();
          }
        });
      } else {
        setDownShelf(row.id).then((res) => {
          if (res.code == 200) {
            this.$message.success("下架成功");
            this.getList();
          }
        });
      }
    },
  },
};
</script>
